I don't normally write reviews, but I felt that I should for this chair. I used to use this big, bulky, leather chair (and did for approximately 5 years). I started trying to improve my posture and knew my old chair had to go. I took a chance ordering online for the first time, and I am very pleased with my purchase. Took about 10 minutes to set up on my own, and my back has never felt better. I don't sit infront of my computer for more than 4 or 5 hours at a time, but I never feel uncomfortable. My back used to hurt after about 1-2 hours, while I'm perfectly fine sitting here for the same amount of time with no pain.